Title is a bit over-exaggerative. World is only 80%+ urbanized based on European Commission definitions of city and urbanization standards. Situations differ based really on interpretation, specific country policies for cities and population density and infrastructure. Certain cities that the European Commission include might not have certain core structures like a police station as the article itself pointed out with Egyptian villages that have grown into cities which in turn means that European Commission standards are not comparable to places outside Europe because the living standards etc aren't comparable.